Resources Contact Us Home
Integrating analog/digital converter

Image Number 16 for United States Patent #6285310.

An analog/digital converter including an amplifier (1) wired as an integrator, a comparator (2) electrically downstream from the integrator, a time counter (6) which continually counts the pulses of a pulse generator (5), a bistable element (4), and additional circuitry. The bistable element (4) drives the input network of the amplifier (1) with at least one switch (3) in such a way that in one of its two positions ("off" condition) a current I.sub.x proportional to the analog measured value is integrated, and in the other position ("on" condition) a constant reference current I.sub.ref with opposite polarity to the current I.sub.x is integrated in addition to current I.sub.x. The switching of the bistable element from the "off" condition to the "on" condition is controlled by the time counter, and the switching from the "on" condition to the "off" condition (switch-off time) is controlled by the output signal of the comparator, which is generally synchronized with the pulses of the pulse generator. The pulses of the pulse generator (5) are summed to a result during the time the bistable element is in its "on" position. The additional circuitry displaces the switch-off time of the bistable element (4) beyond the time resulting from the above synchronization by a number of pulses of the pulse generator (5) determined by an arithmetic unit (31).

  Recently Added Patents
Controller for internal combustion engine
Playback device, playback method, and computer program
Mobile camera localization using depth maps
Agglutination judgment method
Semiconductor device and manufacturing method thereof
Performance metrics processing for anticipating unavailability
Chip on chip semiconductor device including an underfill layer having a resin containing an amine-based curing agent
  Randomly Featured Patents
Self-learning transceiver
Method for assembling together parts of automobile lights
Loudspeaker enclosure
Styrenic resin composition and semiconductor carrier device
Method for determining the contour of an in vivo organ using multiple image frames of the organ
Stabilization of conductive adhesive by metallurgical bonding
Infusion packet
Frenotomy method and apparatus
Extrusion texturization of full-fat soybean and product thereof
Water-dilutable coating composition of polyhydroxyl condensation or addition resin, amino resin and blocked acid catalyst